Stay warm and visible during your outdoor workouts with the Under Armour Women's ColdGear Reactor Vest. This sleeveless vest is made with lightweight and high-visibility thermal activewear material, ensuring that you stay comfortable and safe. The ColdGear Reactor technology adapts to your activity level, providing the right amount of warmth and breathability. It also features a reflective logo and trim for enhanced visibility in low-light conditions. With its stylish design and functional features, this vest is a top-rated choice among women on Amazon.